C言語テストごっこ

main.c

#include <stdio.h>
#include "tester.h"

int test1();
int test2();
int test3();

int main ()
{
  test_start();

  TEST(test1, "Answer");
  TEST(test2, "1/2 in int is 0");
  TEST(test3, "Pythagorean theorem");
  
  test_end();
}


int test1()
{
  return 42;
}


int test2()
{
  return (1/2 == 0);
}

int test3()
{
  return (3*3 + 4*4 == 5*5);
}

tester.h

// tester.h
// Test helper

#define ANSI_COLOR_RED     "\x1b[31m"
#define ANSI_COLOR_GREEN   "\x1b[32m"
#define ANSI_COLOR_RESET   "\x1b[0m"

#define TEST(t,s)                                                    \
if ((t)()) {                                                         \
  printf(ANSI_COLOR_GREEN "%s ok ... %s" ANSI_COLOR_RESET "\n",      \
         #t,                                                         \
         (s));                                                       \
  test_count++,                                                      \
  pass_count++;                                                      \
} else {                                                             \
  printf(ANSI_COLOR_RED "%s FAILED!! ... %s" ANSI_COLOR_RESET "\n",  \
         #t,                                                         \
         (s));                                                       \
  test_count++;                                                      \
  printf(                                                            \
    ANSI_COLOR_RED "    %s : line %d" ANSI_COLOR_RESET "\n",         \
    __FILE__,                                                        \
    __LINE__                                                         \
  );                                                                 \
}


static int test_count;
static int pass_count;

void test_start()
{
  test_count = 0;
  pass_count = 0;
}


void test_end()
{
  if (pass_count == test_count) {
    printf("\n");
    printf(ANSI_COLOR_GREEN "ALL TEST PASSED!\t%d/%d" ANSI_COLOR_RESET "\n\n",
           pass_count,
           test_count);
  } else {
    printf("\n");
    printf(ANSI_COLOR_RED "TEST FAILED!\t%d/%d" ANSI_COLOR_RESET "\n\n",
           pass_count,
           test_count);
  }
}